package com.hong.shiro;

import at.pollux.thymeleaf.shiro.dialect.ShiroDialect;
import org.apache.shiro.spring.web.ShiroFilterFactoryBean;
import org.apache.shiro.web.mgt.DefaultWebSecurityManager;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * @Auther: csh
 * @Date: 2019/11/6 11:43
 * @Description:shiro配置类
 */
@Configuration
public class ShiroConfig {
    /**
     * 创建ShiroFilterFactoryBean
     */
    @Bean
    public ShiroFilterFactoryBean getShiroFileRacotryBean(@Qualifier("securityManager") DefaultWebSecurityManager securityManager){
        ShiroFilterFactoryBean shiroFilterFactoryBean = new ShiroFilterFactoryBean();
        //设置安全管理器
        shiroFilterFactoryBean.setSecurityManager(securityManager);
        /*添加shiro内置过滤器，可以实现权限相关的拦截
         *    常用的过滤器：
         *       anon: 无需认证（登录）可以访问
         *       authc: 必须认证才可以访问
         *       user: 如果使用rememberMe的功能可以直接访问
         *       perms： 该资源必须得到资源权限才可以访问
         *       role: 该资源必须得到角色权限才可以访问
        * */
        Map<String,String> filterMap = new LinkedHashMap <>();
        filterMap.put("/login","anon");
        filterMap.put("/testThymeleaf","anon");
        /*filterMap.put("/add","authc");
        filterMap.put("/update","authc");*/
        //授权过滤器
        filterMap.put("/add","perms[user:add]");
        filterMap.put("/update","perms[user:update]");
        filterMap.put("/*","authc");
        //修改调整调转的页面
        shiroFilterFactoryBean.setLoginUrl("/toLogin");
        //设置未授权提示页面
        shiroFilterFactoryBean.setUnauthorizedUrl("/unAuth");
        shiroFilterFactoryBean.setFilterChainDefinitionMap(filterMap);
        return shiroFilterFactoryBean;
    }



    /**
     * 创建DefaultWebSecurityManager
     */
    @Bean(name = "securityManager")
    public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm")UserRealm userRealm){
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        //关联realm
        securityManager.setRealm(userRealm);
        return securityManager;
    }

    /**
     * 创建Realm
     * 备注：@bean是注释到spring的容器中
     */
    @Bean(name = "userRealm")
    public UserRealm getRealm(){
        return new UserRealm();
    }


    /**
     * 配置ShiroDialect，用于thymeleaf和shiro标签配合使用
     */
    @Bean
    public ShiroDialect getShiroDialect(){
        return new ShiroDialect();
    }

}
